Re: Guitar Hangers
For individual wall hangars, Swing String or Hercules are probably the best options. Both very secure and are available with a nicely finished wooden base (Hercules' oak would be my preference).
Both designs require you to lift the guitar upwards to remove it, eliminating any risk of it sliding out if it's knocked or you aren't 100% precise with placing it in the hangar. The Hercules self-locking system is self-explanatory (I'd probably avoid off-brand imitations of this locking system). The Swing String is a less fancy design, but equally secure - the dip in the neck rest means you have to lift the guitar up about an inch to remove it.